WO2023004879A1

WO2023004879A1 - Leveling method and apparatus for flexible product

Info

Publication number: WO2023004879A1
Application number: PCT/CN2021/111417
Authority: WO
Inventors: 靳登科; 顾勇强; 季树勇; 王永兴
Original assignee: 逸美德科技股份有限公司
Priority date: 2021-07-30
Filing date: 2021-08-09
Publication date: 2023-02-02
Also published as: CN113581893A

Abstract

Disclosed in the present invention is a leveling method for a flexible product. The flexible product comprises a detection portion and an accessory portion arranged around the detection portion. The leveling method comprises the following steps: fixing the flexible product on a bearing platform by using a positioning unit having a hollow portion, the positioning unit being pressed on the accessory portion, and the hollow portion being arranged corresponding to the detection portion; closing the end of the hollow portion distant from the bearing platform to seal the hollow portion; and injecting a positive-pressure gas into the hollow portion to form a positive pressure, applied to all surfaces, in the hollow portion, so as to flatten the detection portion. According to the present invention, the effect of flattening the detection portion in the flexible product without contacting the flexible product can be achieved, such that the detection portion can be enabled to perform subsequent detection, thereby avoiding the situation that the flexible product is crushed or damaged. In addition, since a preset pressure value is set in the whole method, an acting force applied to each part of the detection portion by the positive-pressure gas is kept the same, such that the leveling effect is better.

Description

Smoothing method and device for flexible products

Cross Reference Related References

This application claims the priority of the Chinese patent application with application number 2021108748608 and titled "Smoothing method and device for flexible products" filed on July 30, 2021, which is incorporated herein by reference.

technical field

The invention relates to the field of flexible product processing, in particular to a flattening method and device for flexible products.

Background technique

In the actual use of flexible products, there are steps that need to be inspected after being flattened. Existing flattening methods for flexible products use rigid materials to flatten flexible products, but the flexible products may be crushed or damaged. In order to solve this problem, the existing industry routine is to find ultra-flexible film flat pressing products, but the flexible film is not rigid enough to perform effective plane positioning, pressing and shaping operations on flexible products.

In order to solve the above problems, the inventor tried to use a non-contact plane positioning and leveling method, which placed flexible products on the plane part of the carrying platform through the carrying platform and the vacuum adsorption micropores opened on the carrying platform and vacuum adsorption The micropores are vacuum-suctioned, intending to absorb them from the end of the carrying platform away from the flexible product so as to achieve the smooth effect of the flexible product. However, after trying, it was found that this way of spot suction exerted uneven force on flexible products, and the smoothing effect was not good. In addition, the inventor also tried to use an air gun to inject gas from the end of the flexible product away from the carrying platform, but found that the gas in the air gun vibrates, and the flexible product cannot be kept in a fixed position while the flexible product is in a flat state.

Contents of the invention

In order to overcome the defects in the prior art, embodiments of the present invention provide a flattening method and device for flexible products, which are used to solve the above-mentioned problems of crushing or damage to flexible products and poor flattening effect.

The embodiment of the present application discloses: a flattening method for a flexible product, the flexible product includes a detection part and an auxiliary material part surrounding the periphery of the detection part, including the following steps: using a positioning unit with a hollow part to place the flexible The product is fixed on the carrying platform, the positioning unit is pressed on the auxiliary material part, and the hollow part is set corresponding to the detection part; the end of the hollow part away from the carrying platform is closed to make the hollow part Sealing: Inject positive pressure gas into the hollow part to form a positive pressure on all surfaces in the hollow part, thereby flattening the detection part.

Further, the flexible product includes a PU film and a wafer arranged on the PU film detection part, and the pressure of the hollow part is set at 0.5MPA-0.7MPA.

The embodiment of the present application also provides a flattening device for flexible products. The flexible product includes a detection part and an auxiliary material part surrounding the detection part. The flattening device includes: a carrying platform, and the carrying platform There is a plane part on which the flexible product is arranged; a positioning unit, the positioning unit is pressed on the side of the auxiliary material part away from the plane part, and the positioning unit has a position perpendicular to the plane part The hollow part penetrates in the direction of the hollow part, and the hollow part is arranged correspondingly to the detection part, and the positioning unit is penetrated with an air flow channel from the vicinity of the hollow part to the away from the hollow part; the sealing part, the sealing part It is arranged on the side of the hollow part away from the bearing platform and seals the hollow part; an air source, the gas source is communicated with the air flow channel, so that the gas can be input into the air flow channel so that the hollow part reaches A preset pressure, the gas source can stop feeding gas into the airflow channel when the hollow part is at the preset pressure.

Further, the sealing part is transparent optical glass.

Further, a fixing unit is included, the fixing unit is adjacent to the positioning unit and the carrying platform, and the fixing unit is screwed to the positioning unit and the carrying platform.

Further, a plurality of the fixing units are arranged at an end of the positioning unit away from the hollow portion.

Further, the positioning unit has a first plane and a second plane parallel to the plane part, a side of the sealing part adjacent to the plane part is parallel to the plane part, and the first plane is parallel to the plane part. The auxiliary material part abuts, and the second plane abuts against the sealing part.

Further, the sealing part is fixedly connected with the positioning unit.

Further, the carrying platform is provided with a groove which is recessed from its edge to the inside thereof, and the groove is arranged correspondingly to the air pipe joint.

Further, both the carrying platform and the positioning unit are aluminum plates.

The beneficial effects of the present invention are as follows:

1. The effect of flattening the detection part in the flexible product can be achieved without touching the flexible product, so that subsequent detection can be performed, and the situation of crushing or destroying the flexible product can be avoided. Moreover, since the preset pressure value is set in the whole method, the force exerted by the positive pressure gas on each part of the detection part remains the same, so that the leveling effect is better.

2. By forming the airtight hollow part, the positive pressure gas therein can exert force on the detection part and make the detection part flat. In this process, direct contact with the flexible product can be avoided, thereby preventing crushing or damage to the flexible product. In addition, it can also realize uniform stress on the flexible product and make the flexible product fixed in the flat position, which improves the flexibility of the product. The flattening effect of the material.

3. It is convenient to observe and monitor the flexible products in the hollow part. In this way, it is convenient for the operator to have an intuitive understanding of the working environment in the hollow part, and to further judge the flatness of the flexible product.

4. Positioning units are respectively arranged around the positioning unit, so as to fix the surroundings of the positioning unit and improve the stability of the whole device. In addition, direct fixing between the positioning unit and the carrying platform can also be avoided, thereby saving the positioning unit, so that the positioning unit does not need to be fixed with the carrying platform beyond the auxiliary material part.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is an exploded view of a flattening device for flexible products in an embodiment of the present invention;

Fig. 2 is a schematic structural view of a flattening device for flexible products in an embodiment of the present invention;

3 is a schematic cross-sectional view of a leveling device for flexible products in an embodiment of the present invention;

The reference signs of the above drawings: 1. carrying platform; 11. plane part; 12. groove; 2. flexible product; 21. detection part; 22. auxiliary material part; 3. positioning unit; 31. hollow part; 32. 2nd plane; 33, air flow channel; 34, threaded hole; 4, sealing part; 5, fixing unit; 6, air pipe joint.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 to 3, in the flattening method for flexible products of this embodiment, the flexible product 2 may include a detection part 21 and an auxiliary material part 22 surrounding the periphery of the detection part 21, including the following steps:

The flexible product 2 is fixed on the carrying platform 1 with the positioning unit 3 having the hollow part 31, the positioning unit 3 can be pressed on the auxiliary material part 22, the hollow part 31 can be set corresponding to the detection part 21, so that the detection part 21 is located in the hollow In the part 31 , at this time, the detection part 21 may have a part that is tilted relative to the carrying platform 1 .

The end of the hollow portion 31 away from the carrying platform 1 is closed to seal the hollow portion 31 , so as to prevent the gas from flowing out after the positive pressure gas is injected into the hollow portion 31 .

Positive pressure gas is injected into the hollow part 31 to form a positive pressure on all surfaces in the hollow part 31. The positive pressure gas in the hollow part 31 can make the flexible product 2 be flattened on the carrying platform 1 by pressure, thereby flattening detection part 21.

Specifically, the flexible product may include a PU film and a wafer disposed on the PU film detection part 21, and the pressure of the hollow part is set at 0.5MPa-0.7MPa.

In this embodiment, the gas source injects high-pressure gas into the hollow part 31 through the air flow channel 33 on the positioning unit 3, and the preset pressure value of the hollow part 31 is set to 0.6 MPa. When the pressure value in the hollow part 31 reaches The air source is closed at 0.6MPa. The positive pressure gas in the hollow part 31 forms a positive pressure to pressurize all surfaces, and the detection part 21 is pressed to the plane part 11 by the positive pressure, so that the detection part 21 and the plane part 11 are in close contact, and then the detection part is realized 21 smooth effects.

By means of the above method, the detection part 21 in the flexible product 2 can be flattened without touching the flexible product 2 , so that subsequent detection can be performed, and the situation of crushing or destroying the flexible product 2 can be avoided. Moreover, since the preset pressure value is set in the whole method, the force exerted by the positive pressure gas on each part of the detection part 21 remains the same, so that the smoothing effect is better.

As shown in Figures 1 to 3, this embodiment also provides a flattening device for flexible products. The flexible product 2 can be arranged on the plane part 11, and the flexible product 2 can include a detection part 21 and be surrounded by the detection part. 21 peripheral auxiliary material portion 22. The auxiliary material part 22 is used for positioning the unit 3 thereon and positioning the entire flexible product 2 to the plane part 11 . Wafers may be disposed on the detection unit 21 . The specific shapes of the auxiliary material part 22 and the detection part 21 can be adjusted according to actual needs.

Leveling devices include:

The carrying platform 1, the carrying platform 1 may have a plane portion 11, so that the carrying platform 1 can carry materials and other mechanisms. The flat part 11 can be located on the flat part 11 so that the flexible product 2 can keep close contact with the flat part 11 after the gas pressure in the hollow part 31 acts, so that the flexible product 2 can be kept flat. Other parts of the carrying platform 1 except the plane portion 11 can be adjusted according to actual needs, so that the carrying platform 1 can be set under different working conditions. The carrying platform 1 can be made of rigid material, so that the carrying platform 1 can provide a flat reference surface.

The positioning unit 3 , the positioning unit 3 can be arranged on the side of the auxiliary material part 22 away from the plane part 11 , and the positioning unit 3 can have a hollow part 31 penetrating in a direction perpendicular to the plane part 11 . Therefore, after the positioning unit 3 is in contact with the flexible product 2, the positioning unit 3 can contact the auxiliary material part 22, and the hollow part 31 corresponds to the detection part 21, thereby preventing the detection part 21 from being affected by the contact between the positioning part and the detection part 21. The positioning unit 3 can be provided with an airflow channel 33 from the adjacent hollow part 31 to the airflow channel 33 away from the hollow part 31, and the airflow channel 33 away from the hollow part 31 can include a tracheal joint 6, so that the positive pressure gas can pass through the tracheal joint 6 from the airflow channel 33 into the hollow portion 31. The positioning unit 3 can be made of rigid material, so that the positioning unit 3 can fasten the auxiliary material part 22 .

The sealing part 4, the sealing part 4 can be arranged on the side of the hollow part 31 away from the carrying platform 1 and seal the hollow part 31, so that the positive pressure gas in the hollow part 31 can gather in the hollow part 31 and make the air in the hollow part 31 Positive pressure gas seal is airtight.

A gas source (not shown in the figure), the gas source can be communicated with the airflow channel 33, so that the gas can be input to the airflow channel 33 and the hollow part 31 can reach a preset pressure, and the gas source can be stopped when the hollow part 31 is at a preset pressure Gas is supplied to the gas flow channel 33 . The gas input therein can be a positive pressure gas, so that the inside of the hollow part 31 reaches the preset pressure value faster.

In this embodiment, the air source includes an electric control cabinet, a high-pressure gas pipe controllable by the electric control cabinet, and a solenoid valve electrically connected to the electric control cabinet. The electric control cabinet controls the high-pressure air pipe to communicate with the air pipe joint 6 and makes the solenoid valve electrically connected to the electric control cabinet open. The high-pressure air pipe injects high-pressure gas into the air pipe joint 6 and makes the high-pressure gas flow into the hollow part 31 through the air flow channel 33 , and finally cut off the electromagnetic valve after the gas in the hollow part 31 reaches a preset pressure value, so that the gas path of the high-pressure gas pipe is closed. During this process, the positive pressure gas in the hollow part 31 forms a positive pressure that applies pressure to all surfaces, and the detection part 21 is pressed to the plane part 11 by the positive pressure, so that the detection part 21 is in close contact with the plane part 11, Furthermore, the effect of leveling the detection part 21 is achieved.

With the above structure, by forming the airtight hollow portion 31 , the positive pressure gas therein can exert force on the detection portion 21 and make the detection portion 21 flat. During this process, direct contact with the flexible product 2 can be avoided, thereby preventing the flexible product 2 from being crushed or damaged. In addition, the flexible product 2 can be evenly stressed everywhere and the flexible product 2 can be fixed in a flat position. Improved leveling for flexible materials.

Specifically, the sealing part 4 may be transparent optical glass, so that the sealing part 4 acts as an observation window for the hollow part 31 , which is convenient for observing and monitoring the flexible product 2 in the hollow part 31 . Therefore, it is convenient for the operator to intuitively understand the working environment in the hollow portion 31 and to further judge the flatness of the flexible product 2 .

Specifically, as shown in FIGS. 1 to 3 , a fixing unit 5 is included, and the fixing unit 5 can be adjacent to the positioning unit 3 and the carrying platform 1 , and the fixing unit 5 is screwed to the positioning unit 3 and the carrying platform 1 . Therefore, the positioning unit 3 and the carrying platform 1 are fixed to each other by the fixing unit 5 . A reinforcement effect on the positioning unit 3 and the carrying platform 1 can be achieved. The fixing unit 5, the positioning unit 3 and the carrying unit can all be screwed, except that the airflow channel 33 communicated with the air pipe joint 6 communicates with the hollow part 31, and the rest can be threaded holes 34 isolated from the hollow part 31.

Specifically, as shown in FIG. 1 and FIG. 2 , a plurality of fixing units 5 may be arranged at an end of the positioning unit 3 away from the hollow portion 31 . As shown in Figure 1, in the present embodiment, the projection shape of the positioning unit 3 on the section perpendicular to its thickness is a rectangular ring, and the positioning units 3 are respectively arranged around the positioning unit 3, so that the positioning unit 3 Fixed all around to improve the stability of the whole device. In addition, direct fixing between the positioning unit 3 and the carrying platform 1 can also be avoided, thereby saving the positioning unit 3 , so that the positioning unit 3 does not need to be fixed to the carrying platform 1 beyond the auxiliary material portion 22 . Of course, in other optional embodiments, when the projection shape of the positioning unit 3 on the section perpendicular to its thickness is a ring or other shapes, the fixing unit 5 can surround it to fix it.

Specifically, as shown in FIG. 1, the positioning unit 3 may have a first plane and a second plane 32 parallel to the plane part 11, and the side of the sealing part 4 adjacent to the plane part 11 may be parallel to the plane part 11, so that during use Among them, the first plane can be in contact with the auxiliary material part 22 , and the second plane 32 can be in contact with the sealing part 4 . The part of the hollow part 31 close to the flexible product 2 can be sealed between the first plane and the auxiliary material part 22, and the part of the hollow part 31 close to the sealing part 4 can be sealed between the second plane 32 and the sealing part 4, thereby lifting the hollow part 31 Tightness of medium positive pressure gas.

Specifically, the sealing part 4 can be fixedly connected with the positioning unit 3, so that there is a stronger bonding force between the sealing part 4 and the positioning unit 3, which can prevent the positive pressure gas inside the hollow part 31 from sealing the device during use. The situation that the part 4 pushes away from the positioning unit 3 improves the use stability of the whole flattening device for flexible products.

Specifically, as shown in Fig. 1 and Fig. 2, the supporting platform 1 can be provided with a groove 12 which is recessed from its edge to its interior, and the groove 12 can be set corresponding to the air pipe joint 6, that is, the opening position of the groove 12 can be located at At the position where the carrying platform 1 corresponds to the air pipe joint 6 , the size of the groove 12 may be slightly larger than the air pipe joint 6 , so as to prevent interference between the air pipe joint 6 and the carrying platform 1 .

Specifically, the carrying platform 1 and the positioning unit 3 can both be aluminum plates. Since the aluminum plate has the characteristics of light weight and high hardness, the flexible product 2 located in the carrying platform 1 and the positioning unit 3 can be fixed on the plane part 11 The formed datum surface improves the fixing effect on the flexible product 2 .

In the present invention, specific examples have been applied to explain the principles and implementation methods of the present invention, and the descriptions of the above examples are only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to this The idea of the invention will have changes in the specific implementation and scope of application. To sum up, the contents of this specification should not be construed as limiting the present invention.

Claims

A flattening method for a flexible product, the flexible product includes a detection part and an auxiliary material part surrounding the periphery of the detection part, characterized in that it includes the following steps:

The flexible product is fixed on the carrying platform with a positioning unit having a hollow part, the positioning unit is pressed on the auxiliary material part, and the hollow part is set correspondingly to the detection part;

closing the end of the hollow part away from the carrying platform, so that the hollow part is sealed;

Positive pressure gas is injected into the hollow portion to form a positive pressure on all surfaces of the hollow portion, thereby flattening the detection portion.
The flattening method for flexible products according to claim 1, wherein the flexible products include a PU film and a wafer arranged on the PU film detection part, and the pressure of the hollow part is set to 0.5 MPA-0.7MPA.
A flattening device for flexible products, the flexible product includes a detection part and an auxiliary material part surrounding the periphery of the detection part, characterized in that the flattening device includes:

a carrying platform having a planar portion for the flexible product to be disposed thereon;

A positioning unit, the positioning unit is press-set on the side of the auxiliary material part away from the plane part, the positioning unit has a hollow part penetrating in a direction perpendicular to the plane part, and the hollow part is connected to the plane part The detection part is provided correspondingly, and the positioning unit is provided with an air flow channel from the adjacent hollow part to the airflow channel away from the hollow part; the sealing part is arranged on the side of the hollow part away from the carrying platform and sealing the hollow portion;

A gas source, the gas source is in communication with the air flow passage, so that gas can be input into the air flow passage to make the hollow part reach a preset pressure, and the gas source can stop supplying air to the air flow channel when the hollow part is at a preset pressure. The gas is input into the gas flow channel.
The flattening device for flexible products according to claim 3, wherein the sealing part is transparent optical glass.
The flattening device for flexible products according to claim 3, characterized in that it comprises a fixing unit, the fixing unit is adjacent to the positioning unit and the carrying platform, and the fixing unit is connected to the positioning unit and the loading platform. The bearing platform is threadedly connected.
The flattening device for flexible products according to claim 5, wherein a plurality of said fixing units are arranged at an end of said positioning unit away from said hollow portion.
The flattening device for flexible products according to claim 3, wherein the positioning unit has a first plane and a second plane parallel to the plane part, and the sealing part is adjacent to one of the plane parts. The side is parallel to the plane part, the first plane is in contact with the auxiliary material part, and the second plane is in contact with the sealing part.
The flattening device for flexible products according to claim 3, wherein the sealing part is fixedly connected with the positioning unit.
The flattening device for flexible products according to claim 3, characterized in that, the carrying platform is provided with a groove which is recessed from its edge to the inside thereof, and the groove is arranged corresponding to the air pipe joint.
The flattening device for flexible products according to claim 3, characterized in that, both the carrying platform and the positioning unit are aluminum plates.